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Ubuntu Security Notice USN-5064-2

Ubuntu Security Notice USN-5064-2
Posted Jan 28, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5064-2 - USN-5064-1 fixed vulnerabilities in GNU cpio. This update provides the corresponding updates for Ubuntu 16.04 ESM. Maverick Chung and Qiaoyi Fang discovered that cpio incorrectly handled certain pattern files. A remote attacker could use this issue to cause cpio to crash, resulting in a denial of service, or possibly execute arbitrary code.

tags | advisory, remote, denial of service, arbitrary, vulnerability
systems | linux, ubuntu
advisories | CVE-2021-38185
SHA-256 | dca19316cf7eca3e16b0999725db9e6e0898ebb5b48144f1e778715761f44a73

Ubuntu Security Notice USN-5064-2

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5064-2
January 27, 2022

cpio vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 ESM

Summary:

GNU cpio could be made to crash or run programs if it opened a specially
crafted file.

Software Description:
- cpio: a tool to manage archives of files

Details:

USN-5064-1 fixed vulnerabilities in GNU cpio. This update provides
the corresponding updates for Ubuntu 16.04 ESM.

Original advisory details:

Maverick Chung and Qiaoyi Fang discovered that cpio incorrectly handled
certain pattern files. A remote attacker could use this issue to cause cpio
to crash, resulting in a denial of service, or possibly execute arbitrary
code.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 ESM:
cpio 2.11+dfsg-5ubuntu1.1+esm1

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-5064-2
https://ubuntu.com/security/notices/USN-5064-1
CVE-2021-38185
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